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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Studia Logicaarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Studia Logica
Article . 1961 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
https://doi.org/10.1007/978-94...
Part of book or chapter of book . 1977 . Peer-reviewed
Data sources: Crossref
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Classification as a kind of distance function. Natural classifications

Authors: Seweryna Łuszczewska-Romahnowa;

Classification as a kind of distance function. Natural classifications

Abstract

There exists a close analogy between the theoretical procedure of classifying a domain of objects and the physical operation of segregationsl ordering of a collection of bodies, which in the simplest case consists in first forming a number of heaps of the elements of the collection to be ordered and then in arranging these heaps so as to form clusters of heaps and eventually also clusters of clusters of heaps, etc.

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
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